FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE N26

Carrying IRR BIA RTE N26 over BIS LI AH WASH

4 MI EAST OF AZ HWY 191, Apache, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
13 t Inventory load rating

Bridge Snapshot: IRR BIA RTE N26

The IRR BIA RTE N26 bridge in Apache, Arizona carries IRR BIA RTE N26 over BIS LI AH WASH. It was built in 1976, making it 50 years old today. The structure is built primarily of steel continuous and spans 6 sections, stretching 55.5 meters (182 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of Arizona bridges. It is owned and maintained by Bureau of Indian Affairs.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 12.8 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How IRR BIA RTE N26 compares

▼ 34.6
Load rating vs Arizona average (47.4 t)
Bottom 1%
Lower load rating than 99% of Arizona bridges
173
Bridges in Apache · 14 in Poor condition
IRR BIA RTE N26 12.8 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
21.7 / 100 - historical 20–49.9 band
Structural adequacy /55
1.8
Serviceability /30
8.0
Essentiality /15
11.9
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
12.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1976
Material
Steel Continuous
Number of Spans
6
Structure Length
55.5 m (182 ft)
Deck Width
4.0 m (13 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
300 vehicles/day
Structure Number
00000000000N521

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

IRR BIA RTE N26 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare IRR BIA RTE N26 against other structures in Apache and across Arizona. Arizona bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for IRR BIA RTE N26?

IRR BIA RTE N26 in Apache, Arizona has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE N26 inspected?

IRR BIA RTE N26's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 300 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. IRR BIA RTE N26 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for IRR BIA RTE N26?

IRR BIA RTE N26 has an NBI inventory load rating of 12.8 metric tons.

Who is responsible for maintaining IRR BIA RTE N26?

IRR BIA RTE N26 is owned and maintained by Bureau of Indian Affairs.

How old is IRR BIA RTE N26 and does age affect safety?

IRR BIA RTE N26 was built in 1976, making it 50 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.